Hand can seamer



Nov. 22, 1932. J. H. BURPEE 1,838,583

HAND CAN SEAMER Filed May 25, 19 1 2v Sheets-Sheet 1 g 8 -INVENTOR, JohnH.Bur o9e, v

' ATTOR EY,

Patented Nov. .22, 1932 UNITED] STATES PATENT OFFICE JOHN H. BURPEE, OF BELLINGHAM, WASHINGTON,-ASSIGNOR TO EUGENE B. FOSTER AND CECIL A. FOLSOM, BOTHOF IBEL-LINGHAM,

WASHINGTON HAND CAN SEAMER Application filed May 25, 1931. Serial No. 539,791.

My invention relates to improvements in can seamers, and has for an ob ect to provide a can seamer with driven seaming rolls and a press roll which also is driven but only dur- I ing the period of the crimping and sealing operationsof said seaming rolls.

Another object of'my improvement is to provide a can seamer in which the can is caused to approach the crimping roll moving in a direction opposite to the direction of mo tion in revolution of that part of the periphcry of said crimping roll being approached thereby. v

Another object of my improvement is to provide a can seamer in which a press roll replaces the usual can chuck and in which said press roll is suited to operate cans of equal and larger diameters than said press roll.

Another object of my improvement is to provide a can seamer in which the seaming rolls thereof are or may be caused to revolve operatively continuously during which cans may be fed into, seamedand taken from the machine. v

Other objects of, my improvement will appear as the description proceeds.

My invention is well suited for power can vseamers which have automatic can feeding-in and releasing means, for power can seamers wherein the cans are placed in and removed from the seamer by hand, and also for hand can seamers. The present disclosure is con- .fined to the last kind.

I attain the objects stated above and others vith the mechanism illustrated in the two sheets of drawings accompanying andforming a part of this specification in which Fig- H ure 1 is a plan View of my hand can seamer, 40 t" r 1g. 2 is a segregated front elevation of the seamcr rolls and bearings assembly, Fig. 3 is a side elevation of Fig. 1, and Fig. 4 is a segregated end elevation 'of the can elevator bolt showing also a fragmentary portion of the machine frame.

Similar characters refer to similar parts throughout. Certain parts are broken away for lack of space or to show other parts hidden thereb With more particular reference to the Bearing Base plate 5 has clamp ii apart and equidistant from the axis of post 6. t Short shaft has spur gear 11 fastened on its upper end below which on said shaft is fastened crimping roll 12 and said shaft is mounted for revolution in bearing 8 with roll 12 hearing on the top thereof. Drive shaft 13 has crank handle 16 fastened to its top end below which with an intervening space is fastened spur gear 14 and next below the spur gear and close theretois fastened sealing roll 15 on the shaft, all to revolve therewith. Shaft 13 is mounted for revolution in bearing 9 with roll 15 bearing on the top thereof.

Gears 11 and 14 are disposed to engage each other. 7 i

U frame 17 has bearing 18 on itslower end and bearing 19, in line with bearing 18,"on its upper end by which it is mounted for oscillation on post 6 with bearing 18 hearing on shoulder a6 and bearing 19 adjacent and below set ring 20 fastened on the upperend of the post. Bearing 23 on the upper arm of U frame 17 and bearing 22 on the lower arm thereof are in line and about midway of said arms.

Press roll 25 is fastened on the lower end of short-shaft 26 and spur gear 24 is fastened on said shaft adjacent and above the press roll. revolutionwith said gear and roll thereon beneath the Ufr'ame arm and gear 24dis- Shaft 26 is mounted in bearing 23 forv posed for engagement with each of gears 11 and 14- separately Shaft 26 is shown as retained in place by set ring 27 on the upper end thereof bearing on hearing 28. Press roll 25 is disposed adjacent and beneath the flanges of the seaming rolls 12 and 15 and adjacent the bodies of said seaming rolls in turn asthe U frame oscillates causing shafts 26, 10 and the aXis of as it oscillates on post 6.

29 in a line with shaft line position causing post 6 to be in a line, and the said shaft 26, shaft 13 and said post axis in a line in turn respectively. Preferably, the upper arm of U frame 17 is offset at a1? to cause the same to bear on shaft 13 when the centers of shafts 26, 13 and the axis of .post 6 are in a line, as shown in Fig. 1 with shaft 26 at 26, to stop further forward movement of U frame 17 in oscillation.

When bearing on shaft 13 the U frame 17 is at 17 gear 24 is at 24 and press roll 25 is at 25, the latter being then in closest proximity to sealing roll 15, while when in its full-line position at 25, it is in closest proximity to crimping roll 12.

Can elevator disc 28 is fastened on the top end of can elevator shaft 29 and the latter is mounted for reciprocation in bearing 22 on the lower arm of U frame '17, disposing shaft 26 above. Can eleva tor bolt 30 has beveled disposed longitudinally on the bottom side of the said lower U arm providing for the reciproeation longitudinally of said bolt beneaththe U frame arm. The inner end of bolt 30 is shaped in three steps 32, 33 and 34 providing hearing or stops for the lower end of'shaft 29 at three levels to dispose the can elevator disc either at its indicated full-line level 28, at its indicated dotted-line level 28', orat its other indicated dotted-line level 28 dependent on the position in reciprocation of bolt 30. I Bolt 30 preferably is provided with opening 630 for a finger hold. In the upper edge of bolt 30 is engaged stop screw 35 extended in slot 617 in the U frame arm to'limit the range of the reciprocation of the bolt from the full-line position of screw 35 toits dotted-line position at 35". Can elevator disc 28 is not of larger diameter than press roll 25 and, preferably, is of equal diameter therewith.

Handle 21 is fastened to the outer wall of U frame 17 to provide a hand hold, useful in oscillating the U frame and in retaining the same in desired positions in oscillation.

In operation: The U frame is set rearward of thecrimping roll, say at the broken line w-oa in Fig. 1. Bolt 30 is withdrawn, say to 30', allowing shaft 29 to bear on step 33 thereof and setting disc 28 at 28. Can A, having its unsealed top in place thereon, is set ondisc 28 which is raised to its fullroll 25 to occupy the die ofthe can cover. As illustrated, bolt 30 7 may be now moved to its full-line position causing step 32 thereof to support shaft 29 and setting disc 28 within. the die of the can bottom. Preferably, can A may not be close- 1y clamped between disc 28 and roll 25 but should be loosely held therebetween. Can A may not be of smaller diameter than roll 25 but may be of larger diameter as shown. With one hand revolve crank 16 forward flanges @130, (L30 on-its ,top edge engaging with beveled guides 31, 31

causing rolls 12 and 15 to revolve in the directions indicatedby adjacent arrows. With the other hand move U frame 17 forward causing gear 24 to engage with gear 11 to be revolved thereby and clamping the flanged edges of the top of the can body and the cover thereon between crimping roll 12 and press roll 25- both of which are now being driven by handle 16. For a brief time retain the U frame in its full-line position, shown in Fig. 1,with the center of shaft 26 in line with the shaft 10 and the axis of post 6, where the press roll and the crimping'roll are in their closest proximity, and continue to revolve handle 16, when after can. A has made a few revolutions the crimping operation thereon will have been completed. Then swing U frame 17 further forward when the line are b-b, in Fig. 1, out of engagement with gear 11 and momentarily ceases to revolve. But if said forward movement of the U frame is continued, revolving gear 14 will engage gear 24 causing'it and press @1125 to revolve, but in a direction opposite to that when engaged by gear 11, and the crimped can top will be engaged between sealing roll 15 and the press roll and the seaming of the r can finished thereby while the upper U arm bears against shaft 13 as' a'stop while'the axes of shafts 26 and 13 are that of post 6. After a few revolutions of the can said sealing thereof is completed and the U frame may be returned to its first position at line aa, where the seamed can may be removed by withdrawing bolt 30 which allows the can to move downwar out of engagement with the press roll. Then another can to be seamed may, in the same manner, be placed in the seamer and the work continued. I i

A large number of can dimensions. may be accommodated in my machine. The seaming aligned with I so I.

and press rolls may be varied in diameters,

the diameter of elevator disc 28 and the length of shaft 29 may be varied, as also may the number and height of the steps on the bolt 30. Also, as stated, any given diameter of press roll and supporting disc is suitable for cans of equal and larger diameters. Y

Having thus disclosed my invention, what I claim as new therein and desire to secure by Letters Patent is,-

1. A can seamer including, a pair of continuously revoluble seamer rolls in the same plane, ashaft fastened in the center of each of said seamer rolls, allel bearings for mounting said seamer roll shafts for revolution, a press-roll shaft hearing, a press-roll shaft mounted insaid pressroll shaft bearing for revolution, a press roll fastened concentrically on said press-roll shaft, means shaft bearlng for oscillation a pair of stationary parsame parallel with said seamer-roll shaft bearings and disposing said press roll adjacent each of said seamer rolls in turn by oscillation, means to revolve said seamer rolls, and means to oscillate said press-roll shaft bearing.

2. A can seamer including, a pair of engaged seamer-roll gears, a shaft concentrically fastened in each of said seamer rollgea-rs, a pair of seamer rolls in the same plane each concentrically fastened on one of said shafts, a pair of stationary parallel bearings for mounting said shafts for revolution, a press-roll gear, a press-roll shaft concentrically fastened in said press-roll gear, a press roll concentrically fastened on said press-roll shaft, and an oscillative bearing parallel with said stationary bearings for mounting said press-roll shaft for revolution being adapted for disposing said press-roll gear in engagement with each of said seamerroll gears in turn by oscillation with said press roll disposed adjacent each of said seamer rolls in turn by said oscillation.

3. A can seamer including a pair of continuously revoluble seamer rolls in the same plane, a shaft concentrically fastened in each of said seamer rolls, a pair of stationary parallel bearings for mounting said seamer roll shafts therein for revolution, a press-roll in the plane of said seamer rolls, a shaft fastened in said press roll, an oscillative pressroll bearing for mounting said press-roll shaft therein for revolution being adapted to dispose said press roll adjacent each of said seamer rolls in turn by oscillation, means to revolve said seamer rolls, means to oscillate said press-roll bearing, a can-elevator shaft bearing alined with and fastened to said press-roll bearing for oscillation therewith, a can-elevator shaft mounted for reciprocation and revolution in said can-elevator shaft bearing, a can-supporting disc on the end of said can-elevator shaft opposite said press roll, and means to retain said can-elevator shaft in different positions in reciprocation in said can-elevator shaft bearing.

4:. A can seamer including a pair of continuously revoluble seamer rolls in the same plane, a shaft concentrically fastened in each of said seamer rolls, a gear fastened on each of said seamer-roll shafts, a pair of stationary parallel bearings for mounting said seamer-roll shafts for revolution therein disposed to cause the engagement of said gears on the seamer-roll shafts, an oscillative-arm bearing parallel With said seamer roll bearings, an oscillative arm mounted in said arm bearing, a press-roll bearing fastened to said arm parallel with said seamer-roll bearings, a press-roll shaft mounted in said arm bearing for revolution, a press roll fastened on said press-roll shaft, a press-roll gear fastened on said press-roll shaft, the axes of elevator mounted on said oscillative arm,'

means to adjust the can elevator relative to said press roll, means to revolve said seamerroll shafts, and means to oscillate said arm.

5. A hand can seamer including a base attachable to a bench, a vertical post fastened on the base, a pair of stationary vertical bearings fastened to the post, a pair of seamer-roll shafts mounted in said bearings for revolution, a pair of seamer rolls in the same plane concentrically fastened on said shafts, a pair of engaged gears fastened on said shafts, the points in said seamer rolls most distant from the axis of said post being disposed equidistant from said axis, a hand crank fastened on one of said seamerroll shafts, a U-frame mounted on said post for oscillation-about the axis thereof, a bearing on the upper arm of the U-frame parallel with the seamer-roll axes, a press-roll shaft mounted in said upper U-frame bearing for revolution, a press roll fastened on said press-roll shaft, a press-roll gear fastened on said press-roll shaft disposed to engage each of said revolving seamer-roll gears in turn by oscillating said U-frame thereby revolving said press roll when adjacent said seamer rolls in turn, a can-elevator shaft bearing on the lower arm of said U-frame alined with said press-roll bearing, a canelevator shaft mounted for revolution and oscillation in said can-elevator shaft bearing, a can-supporting disc on the upper end of said ca11-elevator shaft, and means to retain said can-elevator shaft at different levels.

6. A can seamer frame including, a stationary frame, three parallel bearings fastened on said stationary frame disposed in triangular relation, two of said bearings being adapted for mounting the shafts of seamer rolls for revolution, a U-frame mounted on the third of said three bearings for oscillation, a bearing on saidU-frame parallel with said three bearings for mount 7 "ing the shaft of a press roll for revolution,

and another bearing on said U-frame alined with said press-roll bearing for mounting a can-elevator shaft for reciprocation and revolution therein.

JOHN H. BURPEE. 

